Location-Aware mmWave Beamforming Based on Kernel Trick

Bin Yang, Li Chen, Weidong Wang
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Abstract

Location-aware beamforming has been proposed as a potential approach for fast beam selection in millimeter wave (mmWave) multi-input multi-output (MIMO) system. In this paper, we introduce kernel trick to utilize the feature that channel parameters vary continuously with the changing of location. We first formulate the beamforming problem as a classification problem, and we use a multi-class support vector machine to solve this problem. Then, we propose a custom kernel function based on the metric of maximizing the signal-to-noise ratio. Simulation results show that the proposed method performs well in beamforming and it outperforms other commonly used kernel functions.
基于核技巧的位置感知毫米波波束形成
位置感知波束形成被认为是毫米波多输入多输出(MIMO)系统中快速波束选择的一种潜在方法。本文引入核技巧,利用信道参数随位置变化而连续变化的特点。我们首先将波束形成问题表述为一个分类问题,并使用多类支持向量机来解决这个问题。然后,我们提出了一个基于最大化信噪比度量的自定义核函数。仿真结果表明,该方法具有良好的波束形成性能,优于其他常用的核函数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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